Radiator shutter



` H. T. STOKES RADIATOR SHUTTER 04? mvENToR l a /S/dr/ow Tjaaj 1 I wh aal L LTZ---- e- ATTORNEYS Jan; 1, 1929.

H. T. STOKES RADIATOR `smJ'rTER 3 Sheets-Sheet v Filed Sept. 1, 1927 Jlatentetl Jan. l, 1929.

UNITED STATES rarizur ori-fics.

HARLOW T. STOKES, OF BROOKLYN, NEW YORK, ASSIGNOR TO METAL STAMING COM- PANY, OF LONG ISLAND CTY, NEW YORK, A CORPORATION OF NEW YORK.

RADIATOR SHUTTER.

Application filed September My invention relates to radiator shutters, and particularly to automobile radiator shutters of the type in which the shutter slats are operated in Oroups.

A radiator shut-ter which permits of having a lower section or sections partially or completely closed, while an upper section or sections are completely or partially opened, is preferable to the type in which all the shutter-slats are opened and closed simultaneously and in such manner that if any portion of the shutter is partially or completely open the entire shutter is uniformly open to an equal degree.

lVith such a multi-section, preferably a two-section, shutter, the possibility of freezing and damage to the lower part of the radiator is minimized by the possibility of closing this part separately, while a sufiicient air circulation is at the same time permitted through the open upper part. The upper part also can be closed in severe weather, or in warmer weather both parts can be open.

The principal object-of the invention is the provision of simpler and more efficient control means for operating such groups of shutter-slats than has hitherto been available, in order that this superior type of radiator shutter may be more satisfactory in use.

Another object consists in locating the operating mechanism in channels of the shutter frame where it is protected and out of the way and permits the shutter to be installed close up to the surface of the radiator. ,l

The drawings illustrate an embodiment of my invention shown merely for the purpose of illustration and for affording an understanding of my invention, and not for limitation thereof, and it is to be understood that changes and modifications may be resorted to within the scope of my claims without departing from the spirit or scope of my invention. In said drawings:

Fig. l is a fragmentary rear elevational view of a two-section radiator shutter in accordance with my invention, showing both sections of shutter vanes in open position.

2 is a cross-sectional view of a radiator shutter taken on the line 2 2, Fig. l.

Fig. 3 is a cross-sectional view on the line 3-3, Fig. l, showing the means for preventing rattling of the shutter vanes.

Fig. 4 is a cross-sectional view of a radiator shutter, similar to Fig. 2, but showing the top section of shutter vanes in open posi- 1, 1927. semi No. 216,852.

tion and the lower section of shutter vanes in closed position. v v

Fig.l 5 is a cross-sectional view of a radiator shutter, showing both sections of shutter vanes in closed position.

Fig. 6 is a cross-sectional view on the line 6 6, Fig. 4.

f Fig. is a perspective view of the slidebarv for operating the sections ofpshutter vanes.

Fig. 8 is a sectional view taken approximately on the line 8-8, Fig. l, with top shutter section partially and bottom section completely closed. i

Fig. 9 is a fragmentary front elevational view showing the connection 0f the operating cable to the slidebar for operatingthe shutter sections, and

Figs. l0, 1l and 12. are front elevational views showing respectively the shutter with both sections open, top section open and bottom section closed, and both top and bottom sections closed. v

Reference character 2O designatesthe radiator shutter frame, which is provided with a plurality of pivoted vanes or slats 22 eX- tending horizontally across the frame', and

with housings in the vertical or side members of the frame for housing the shutter vane operating mechanism and the shutter vane anti-rattling mechanism. In the embodiment of the invention illustrated in the drawings, said housing means comprise two Vertical channel members 24, 26, one on each side of the frame 20 and running from the top to the bottom of the frame. These channel members 24, 26 contain channels lor grooves 28, 30,` which are openpat the back of the shutter and receive or house the mechanism for opera-ting the shutter vanes and the shutter vane anti-rattling mechanism respectively. All the shutter `parts are preferably made of sheet metal. l

The inner walls of said channel members 24, 26 are made up of flanges '32, 34respectively,` which flanges 82, 34 are approximately half the width of the outer walls 36, 38 of the channel members 24, 26. The channel members 24, 26 also comprise the connecting walls 40, 42, which constitute the vertical front walls of the radiator shutter frame and are substantially flush with the outer surfaces of the shutter vanes 22, when said vanes are in fully closed or vertical position.V

The shutter vanes 22 in swinging from open to closed position move from a substantially horizontal to a substantially vvertical plane. Said vanes 22 are positioned between the. said flanges 32, 84 and are journaled tol pivotl therein` The vanes 22 are provided on their ends 44 with pivotpins or journals 48 ot circular cross-section located about midway between the edges of the vanes. Said pivot pins 48 are received and pivot in circular apertures 56 provided in flange 34. The op posite ends 46 of vanes 22 are provided with rearwardly extending crank arms 52, and each arm 52 is provided with `two circular apertures 54, 56, apertures 54 being positioned about midway between the edges -o't' the vanes and substantially longitudinally opposite theirpivot pins 48011 the/oppositeends' 44 of the vanes, and apertures being` positioned adjacenttheV tips 58 o'f the lcrankarms 52. Thecpivotal mounting ol' the vane ends 46 on-the liange-32-is obtained by providing flange-32 with bosses 60 o1c circularcross-seotion-adapt-ed to pivotally support't-heends 46 of the vanes by entering the vanefaper.- tures 54.1

nthe radiator shutter shown-in the drawing, twelve o'lthe vanes22 aref-provided, which are divided into two groupsor sections of sixvanes each, sec-tion: 62'lbeing located in the upper hal-:tofl lthe shutter 'trame 20, and section'64in thel lower haltet the shutter frame.- lf ldesired, a 'greater orlesser number of vanes may be provided, and they maybe divided into any number'ofsections, eachy section' comprising any' number oat vanes desired.v The vanesin thenpper section 'are connected to turn togetherby a: link-66 provided :with journal bosses 70, which arefpivot-ally` receivedtin .openings 56V-inf the vane crank4 arms V52', andthevanesfin the lower section'are pivotally connected to turnftoget-her by the similar link- 68. The lengtli otcrank arms 52 is such that links-66, 68 rest againstflange 82 when. vshutter-slats 22 are in vertical or completely 'closed posi-tion, andy again rest against said flange 32`7when shutter-slats 22y are in horizontaler compiet-ely open position. In this way stops are provided foreach posit-ion of the shutter vanes by links 66 and' 68f-oomingto rest against flange 32;'

The individual vanes are made wide enough to lap over somewhat when closed,` and inford'erto insuref their being weather tight, a shallow groove Y2-is formed in'each vane, adjacent to thatedge which isuppermostin closed position, and theopposite margin of each vane is bent back to forniva nai-row ian'ge 74'which, when the vanes are; closed, enters the groovel 720i the adjacent vane be'- lowto i'orm a sort-of tong-ue and'groove overlap;

Ifrlesired, oneor both oi 'the overlappinel surfaces may 'be covered or lined with felt or the like to make a tighterclosure.

TheA upper section 62"and lowerl section 64 are spring coupled together, as by means of a relatively long coil spring '76, which in the form shown is hooked over lugs Y 8 and 8O formed on the link 66 of the-.in )per section 62 and on the link 68 of the lower section 64,

respectively.

Spring? 6, as well as the other parte ot the operating mechanism, is received in channel 28;

The sections so spring; connected together are urged'bythe spring' 'T 6 to turn in oppoia'te directions, and when subj to the pull el spring 76 only, the vanes 22 elf the upper sec-tion 62 open unt-il stopped by flange while the vanes of the lower section 64 close and are stoppe-d in closed position also by the stop llange 32.

Manually koperated means are provided for removing thevanes of the several sect-ions to other positions than tie position just described with the top section open and `the lower section'lclosed. The operating means preferably comprises a pull handle working against an expansion spring so'as to secure certainty` of movement in each "i direction.

lnthe constructionshown, a. slide bar 82 is Ymounted tol slide in the channel 28 and is pulleddown by spring 84, also located in 'the channel 28, and can be pulled` upwardly by the cable 86'to which a control hand-le can be attached. The cable may be attached to the lug- 88 formed' in the slidebar 82 and extending through a slot 90 in the outer wall 86 off the channelY member 24.

Slidebar 82 is preferably an angle bar comprising` web 92 and 'flange 94, said flange being provided with top and bottom shoulders 96 and 98, adapted to engage and coact respectively `with the lug' 78 of link 66 of the vane section 62, and the lug; 8O of link 68 of the vane section 64.

l/Vhen f the control cabley is released and slidebar 82 is held downwardly by its springl 84, the vanes otlower section 64 are open, the'pull of spring'84 being transmitted 'to the vanes of section 64 bythe shoulder 98 of slidem bar82, lug -8Ol and link 68. Spring 84 is stronger thanA spring 76,' and while turningI movement yof" ythe vanes 22 of section 64 is ro sisted by the spring 7 6, this resistance lis Aovercome, spring 7 6 being elongated while spring 84 contracts.

Upon retracting` the control cable 86, slide bar V82'is raised, and spring' 84 is elongated, while spring-"mis permitted to contract- At the saine time, the shoulder 98 at the lower end-ot sli'debar 82 backs oil upwardly from its engagement with lug 80 oit' link 68 and permits the vanes` ofthe lower section 64 to be turned to closed position by the section conn'ectorspringfti Further retraction of control cable 86` and upward movement ot bar 82 and' resulting upward movement link 66 by shoulder 66 acting upon lug 78 ol link 66producesa closing movement of vanes lou llt)

tion substantially intermediate between its two extreme positions so that the slidebar 82 doesv no operate to close the upper or open the lower section, the vanes of the two sections retain their positions as first described above,

with the vanes of upper section 62 open and those of lower section. 6ft closed.

Thus with the control cable released both sections are fully opened. With the control cable completely retracted both sections are fully closed, and various intermediate conditions can be obtained.y including` closed position of the bottom section with the top section partially orcompletely open, depending upon weather requirements.

In order to prevent rattling of the shutter vanes in all the positions to Vwhich they may be moved, the vane pivot pins 48 journaled in and projecting through -tlange 34 are provided with annular grooves 100, and a tensioning member, suoli as a spring wire 102, is passed in front of and behind alternate pins of the series and retained in place by being received in the grooves 100, asfshown in Figs. l and 3. The tension of the spring wire 102, while not suflicient to prevent the pivotal turning ot the vanes 22 in the frame 20, )revents rattling of :the vanes in their bearings 50. The arrangement of springs 76 and 84 is such that one or both is always under tension and thus at this end also all looseness and rattling oit' the slats are prevented.

I claim:

l. A radiator shutter having pivotally mounted vanes, two links attached to said vanes adapting them to turn in two sections, a spring connecting said links, and a slidebar for controlling the movement of said links, said slidebar adapted to be manually moved in one direction, and spring means for returning same.

2. A radiator shutter having its vanes arranged to turn in two sets, means normally tending to move the vanes of one set to closed position and the vanes oi the other set to open position, and vane turning means serving when actuated in one direction to turn the vanes oiI one set and when actuated in the opposite direction to turn the vanes oit the other set.

3. A radiator shutter having pivote'd vanes linked together to turn in sections, and spring means connected to and acting on said sections for imparting turning movement thereto in such manner as to tend to move one section oic vanes to a closed position and the other section to an open position.

4l. ln a radiator shutter, a `frame, vanes pivoted in theY frame, links connecting the vanes in a plurality oisections, and a pull spring arranged between and connecting links .Oi adjacent sections in suoli manner as to tend to move one section of vanes to a closed position andthe other section to an open position.

5. A radiator shutter comprising a plurality of movable sections, means normally tending to move one section to closed position and the other section to open position, and means ior actuating said sections.

6. A radiator shutter having vanes arranged to turn in two linked-together sections, spring means normally tending to move the lower section to closed position and the upper section to open position and manually operable means to turn the'vanes ot' either section into other than said normal position.

7. A radiator shutter comprising a plurality of movable sections, spring means tending to movesaid sections to certain of the positions thereof, and an actuating member therefor movable in opposite directions intermediate oi' said sections; said actuating member being movable in one direction to release one of said sections to permit of the spring actuation thereof and to positively actuate the other ol said sections in opposition to the spring means acting thereon, and in the opposite direction to rel-ease and actuate said sections in inverse order.

S. A radiator shutter comprising a plurality vof movable sections, a spring connecting said sections and normally tending to move one oi' said sections to closed posit-ion and the other of said sections to open position, an actuating member intermediate o'l' said sections movable in opposite directions to positively aotuate said sections to move the same in opposition to said spring to the other of the positions thereof, and a spring of greater strength'than said iii-st named spring acting on said actuating member, and serving to normally maintain said actuating member in engagement with the section biased towards closed position by the other of said springs.

9. A radiator shutter comprising a frame, a plurality of pivoted vanes mounted to turn from a vertical to ahOriZonta-l plane in moving from closed to ope-n position, said vanes being grouped into an upper and a lower section, links interconnecting the vanes oit' each section so that said vanes may be operated in unison, each link being provided near its top with a lug, a spring interconnecting said links by being hooked over said lugs, a. vertically movable slideba-r, a spring connected at one end to the lower end of said slidebar and at the other end to the radiator shutter frame, said last named spring exerting a downward pull on said slidebar, and abutments or shoulders on each end of said slidebar to control the movement of said links by contacting with and exerting pressure against the link lugs, whereby the shutter sections controlled by said links are moved or pern'iitted to'be moved into open or closed position depending on the direction infwhich the slidebar is moved.

10. n. radiator shutter comprising a frame provided on its inner face with vertical fianges. one on each side of said fram@ a plurality of vanes extending horizontally across said frame and pivoted in said flangesi said vanes being grouped into a lower section and an upper section9 a linlr` for each section and having connected thereto each of the vanes of said group to operate said vanes in unison, and operating means for said sections including a spring interconnecting the links of both sections, anda vertically slidable spring-tensioned bar provided on its ends with abutments, whereby upon progressive upv-fard movement of said slidebar. first Vthe lower and vthen `the upper section is succes sively closed7 and upon progressive downward movement of said slidebar first the upper section and then the lower section is successively opened.

ll. A radiator shutter comprising a frame provided on its inner face with vertical flanges, one on each side of said frame, a plurality of vanes arranged horizontally across said frame and pivoted in said flanges, said vanes being grouped into two sections, one in the lower part of said frame and the otherin the upper part of said fra-me, a link for each section and having connected thereto each of the vanes of said section to operate said venes in unison, and operating means for said sections including a spring interconnecting the links of both sections and a. vertically slidable bar7 a spring exerting a downward pull upon said slidebar, abutments provided on the ends of said slidebar, whereby upon progressive upward movement of said slidebar, said springs and abutments move first the lower and then the upper sections successively into closed position and upon progressive downward movement of said slidebar, said springs and abutments move first the upper and then the lower sections successively into open position, and a single control means for actuating said slideba-r.

1Q. In a radiator shutter la frame, asubetantially vertical channel member on each side of said frame,l shutter vanes, pins pivotally mounting said vanes in a wall of'said channel members, link bars so fastened to said vanes that saine turn pivotally in two sections, coil spring in the channel of said channel member and connecting said link bars, a slidebar, a coilA spring connecting said siidebar to the frame, a cable attached to said slidebar and adapted for manual actuation thereof against the tension of said spring, shoulders lon said slidebar adapted to `hold down the lower linlr bar when said slideb-ar is in the lower half of its locus and to hold up the upper link bar when said slidebar is in the upper half of its locus.

13. A radiator shutter comprising a plurality of mova le sections, means tending to move one of said sections Ato open position and the other of said sections to closed position, and an actuating member therefor movable in opposite directions intermediate of said sections to positively actuate said sections to the other of the positions thereof; said actuating member being disposed in the intermediate position thereof in disengaged relation to said sections.

In testimony whereof, I have signed my name hereto.

HARLOW T. STOKES. 

